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2020439286281 = 13267737930941
BaseRepresentation
bin11101011001101011100…
…100001110001000001001
321011011002212222011201002
4131121223210032020021
5231100324424130111
64144102121504345
7265654240400003
oct35315344161011
97134085864632
102020439286281
11709955339119
122876a90420b5
131186acc57300
146db0b245373
15378525bc63b
hex1d66b90e209

2020439286281 has 48 divisors (see below), whose sum is σ = 2279450108160. Its totient is φ = 1789023075840.

The previous prime is 2020439286167. The next prime is 2020439286323. The reversal of 2020439286281 is 1826829340202.

It is a de Polignac number, because none of the positive numbers 2k-2020439286281 is a prime.

It is a super-2 number, since 2×20204392862812 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2020439486281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 65284271 + ... + 65315211.

It is an arithmetic number, because the mean of its divisors is an integer number (47488543920).

Almost surely, 22020439286281 is an apocalyptic number.

It is an amenable number.

2020439286281 is a deficient number, since it is larger than the sum of its proper divisors (259010821879).

2020439286281 is a wasteful number, since it uses less digits than its factorization.

2020439286281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31186 (or 31173 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 47.

The spelling of 2020439286281 in words is "two trillion, twenty billion, four hundred thirty-nine million, two hundred eighty-six thousand, two hundred eighty-one".

Divisors: 1 13 67 73 79 169 871 949 1027 4891 5293 5767 11323 12337 13351 30941 63583 68809 74971 386389 402233 826579 894517 974623 2073047 2258693 2444339 5023057 5229029 26949611 29363009 31776407 65299741 151332431 163770713 178436747 350344943 381719117 413093291 1967321603 2129019269 2319677711 11955262049 25575180839 27677250497 30155810243 155418406637 2020439286281